<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>demo4</title>
</head>
<body>
	<table border="1px" width="600px" height="300px" >
	<tr>
		<td colspan="2">1</td>
		
	</tr>
	<tr>
		<td rowspan="2">3</td>
		<td>4</td>
	</tr>
	<tr>
		
		<td>6</td>
	</tr>
	</table>
</body>
</html>